Alex, I'm not up on the latest offering from GM, but I'm pretty sure much of the old V8 still lives on in models available today. As with all engines, things are refined over the years, giving better mileage and emissions. Some of the current V8s give great fuel mileage given the performance. Fuel delivery systems have been updated over the years, a lot of what made the V8 great is still there. I think Vortec engines, or the introduction of the name was to help more easily identify the size of the engine in metric. Eg, A Vortec 5700 is 5.7 litres, so it made doing the math by looking at the engine name easy. I think the base corvette, (not chevette, hee hee) still uses the pushrod engine. Not sure about the current gen of ZR1. Whatever GM call it, I'd feel pretty confident buying a GM V8. Fuel economy may not be that great, but you have to take into consideration what your bolting it into and the weight you're asking it to pull. My old 350 with a mild cam and small carb gave great torque and amazing fuel economy, but it might have been a little thirstier had it been bolted into something like a 600SWB. hee hee.
Ed 300E On 11/02/2008, Alex Chamberlain <[EMAIL PROTECTED]> wrote: > > So if the old small-block was so good, how come they dumped it and > moved to the Vortec engine family for the trucks? Fuel economy and/or > emissions concerns, or something else? > > (Asking because I'm looking at the Tahoe/Yukon but don't know anything > about the new engines reliability- or design-wise.) > > > Alex Chamberlain > '87 300D Turbo et al. > > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
